68 results about "Fibre spinning" patented technology

The invention discloses a dynamic demonomerization and defoaming method and a dynamic demonomerization and defoaming device for carbon fiber spinning solution. An ultrasonic generator is arranged in the centre of a defoaming kettle; an air guide cylinder and a flow guide disk are arranged on a flow diversion and air guide cover; and the defoaming effect is improved to realize low-temperature high-vacuum demonomerization and defoaming of the spinning solution with different relative molecular masses and different charging rates by the processes of heating a demonomerization and defoaming device, continuous feeding, gravity demonomerization and defoaming, film stretch defoaming and ultrasound-assisted defoaming and controlling the defoaming temperature, the vacuum degree and the rotation speed of a demonomerization tower. The spinning solution obtained by the method has the residual monomer content of less than 0.1 percent, less than 5 small bubbles with diameter of less than 0.03mm and solvent loss of less than 5 percent during the demonomerization and defoaming. The method and the device can realize continuous dynamic demonomerization and defoaming at a low temperature under vacuum condition and has the characteristics of simple and practical process and good defoaming effect.

The present invention relates to a production method of composite double-component fibre spun-bonded non-woven fabric, said method uses two or three kinds of resin and adopting the following steps: firstly, making every resin respectively undergo the processes of drying, extruding and filtering, feeding one resin into parallelly-arranged two main spinning trunks, feeding other two groups of resin into parallelly-arranged two auxiliary spinning trunks, then feeding them into main spinning trunks, and feeding all the three groups of resins into special-purpose spinning component and making composition in micropore of spinneret, then making the ejected thin flow undergo the processes of cross air blasting, drawing and fibre-swinging treatment and making it into fibre web by means of web-forming machine, and feeding the fibre web into needle-punching machine or hot-rolling machine so as to obtain the invented double-component spun-bonded non-wowen fabric product.

The present invention discloses a composite fibre spinning process. It is characterized by that said spinning process can simultaneously produce polyester melt POY fibre and FDY fibre, and can directly conjugate them together by means of one-step operation, so that its production process is simple and its production cost is low.

A mercerization colour spinning yarn is prepared by two or more colours of colour fibres spinning. The prepared yarn features that yarn colour has better brightness, fastness and fineness comparing to yarn prepared with original colour spring process.

The invention relates in particular to a new sliver-element fibre spinning technology, belonging to the spinning engineering field of textile industry production, comprising the following steps: pre-opening silver-element fibre to 80% by an opening machine; maintaining the blowing integrated beater speed in the blowing process of less than 600r / m and the beater frequency of sliver-element fibre per gram of less than 0.55; blocking the noil airdraft opening when carding cotton; using a flatbed drawing frame and a wool-top-proof conducting bar device with the drawing funnel caliber of 5.2mm; keeping the roving cycles of 33-38 cycle / 10cm, spinning frame guide stroke of 3-6mm; maintaining the groove drum speed in spooling less than or equal to 700 meter / minute and using a photoelectric type flaw-cutting device. Compared with the existing technology, the invention has the advantages of effective control of noil rate of blowing and cotton carding, small fibre damage, little nep, removal of belt roller wound by drawing and roving, smooth passage and winding, less broken ends, higher intrinsic quality of semi-manufactured goods, less flaws and better resultant yarn quality.

The invention relates to multi-fibre knitted fabric, which is obtained by taking green multi-fibre spinning, soybean fibre spinning and milk protein fibre spinning as raw materials, adopting one or more tissues of a primary tissue, a variable tissue and knitted dobby, processing shell fabric obtained later by using bio-enzyme, and coating a nano protection solution on the surface. According to the multi-fibre knitted fabric disclosed by the invention, the green raw materials are interweaved, so that advantages of various raw materials are complementary; the multi-fibre knitted fabric corresponds with requirements of comfortableness, functionality, health and green of the new generation of textiles; and the multi-fibre knitted fabric can be widely applied to manufacturing various knitted clothing.

The present invention relates to a protein synthetic fibre spinning dope for wig and its production method. Its dope composition is formed from (by weight portion) 30-70 portions of protein, 0.5-3 portions of fire-resistant agent, 1-3 portions of sodium ethanol sulfonate and 28.5-64 portions of polyvinyl alcohol or acrylic nitrile first monomer or acrylic nitrile first monomer and methyl methacrylate or butyl methacrylate or hydroxyethyl methacrylate second monomer. The said raw materials are undergone the processes of copolymerization reaction, curing, heat-insulating and stirring so as to obtain the invented product.

The invention relates to a fire resistant viscose acetal fibre spinning solution and a preparation method thereof. The viscose acetal fibre spinning solution is obtained by mixing sodium silicate and an organophosphorus ester compound to obtain a flame retardant and adding proper dispersant into viscose acetal fibres and has the characteristics of stable dispersion and no flocculation. The sodium silicate and organic phosphate flame retardant is an environmental-friendly product with no toxin, odor and armless and has good dispersivity and low cost. The viscose acetal fibres obtained during spinning with the spinning solution generate no harmful gases, can reduce pollution to environment, has good fire resistance and limited oxygen index being over 28 and achieves the national fire resistant requirement of textile.

The present invention relates to a spinning process for an antistatic and antibacterial nylon 6DTY high elastic filament, which is prepared from raw materials comprising nylon 6 chips and additives by a POY-DTY process. The prepared DTY high elastic filament has antistatic and antibacterial function and good stability, and can meet different requirements of post-weaving finishing.

The invention discloses pearl anion antibacterial underclothes, comprising an underwear and pants, wherein the fabrics of the underwear and the pants are weaved by pearl anion antibacterial fibres. The pearl anion antibacterial fibres are polyester fibres spun by adding a pearl powder, a tourmaline powder and a silver-series antibacterial agent. The underclothes can improve body microcirculation, improve brain function, act a calming effect on the spirit, remove fatigue, continuously release anions, and have an antibacterial function; the underclothes are natural and environment-friendly, multifunctional, and convenient to wash; and an inspection indicates that after the underclothes are washed for 50 times, the functions still achieve more than 99%.

The oil preparation for spinning dacron staple fiber includes two components of component an and component B in the weight ratio of 3-6. The component A has mixed dodecyl and tetradecyl alcohol with weight ratio between dodecyl alcohol and tetradecyl alcohol of 1-3, P2O5 and NaOH as main material and produces phosphate sodium salt of the mixed alcohol. The component B is compounded with fatty alcohol-polyoxyethyleneether ammonium sulfate coconut oil biethyl alcohol acylamine in the weight ratio of 1 to 0.5-1.5. The present invention has low production cost, and results in less breaking during spinning and good forming performance.

The invention discloses a throat-tube type cold-wind-drafted and melt micro-fibre spinning device. The throat-tube type cold-wind-drafted and melt micro-fibre spinning device specifically comprises an extruder, a metering pump, a spinneret plate, a throat-tube type airflow drafter, a receiving device and a winding device, wherein the extruder penetrates through the metering pump through a conveying tube and is connected with the spinneret plate; the spinneret plate is arranged at the upper end of the throat-tube type airflow drafter; a spinneret is arranged at the lower end of the spinneret plate; the throat-tube type airflow drafter comprises an upper portion and a lower portion; a first airflow channel is formed between the upper portion and the lower portion; the centre of the lower portion is a second airflow channel; the receiving device is arranged just below the second airflow channel; the winding device is located at one side of the receiving device. According to the throat-tube type cold-wind-drafted and melt micro-fibre spinning device disclosed by the invention, production energy consumption is greatly reduced, energy is saved, and carbon emission is reduced.

The invention discloses a dynamic demonomerization and defoaming method and a dynamic demonomerization and defoaming device for carbon fiber spinning solution. An ultrasonic generator is arranged in the centre of a defoaming kettle; an air guide cylinder and a flow guide disk are arranged on a flow diversion and air guide cover; and the defoaming effect is improved to realize low-temperature high-vacuum demonomerization and defoaming of the spinning solution with different relative molecular masses and different charging rates by the processes of heating a demonomerization and defoaming device, continuous feeding, gravity demonomerization and defoaming, film stretch defoaming and ultrasound-assisted defoaming and controlling the defoaming temperature, the vacuum degree and the rotation speed of a demonomerization tower. The spinning solution obtained by the method has the residual monomer content of less than 0.1 percent, less than 5 small bubbles with diameter of less than 0.03mm andsolvent loss of less than 5 percent during the demonomerization and defoaming. The method and the device can realize continuous dynamic demonomerization and defoaming at a low temperature under vacuum condition and has the characteristics of simple and practical process and good defoaming effect.

The invention discloses a polyurethane fibre spinning oil. Its composition includes (by wt%) 5-80% of mineral oil, 10-75% of silicone oil, 0.5%-30% of epoxyethane and epoxypropane copolyether, 0.5%-50% of polyether silicone oil, 0.5-15% of antistatic agent and 0.1-10% of anti-sticking property improving agent.

The invention relates to LDPE / PA6 sea-island fiber and a preparation method thereof. The crystallinity of LDPE in the LDPE / PA6 sea-island fiber is less than or equal to 11%. The preparation method comprises the following steps of (1) preparing raw materials: adopting LDPE and PE wax as a sea phase material, and adopting PA6 as an island phase material, wherein the mass of the PE wax is 0.2-0.8 wt% of that of the LDPE; (2) performing spinning: preparing the LDPE / PA6 sea-island fiber by adopting a double-screw sea-island composite spinning method, wherein the spinning speed is 350-800 m / min; (3) performing cooling: performing cooling to obtain sea-island fiber nascent filaments, wherein a blowing mode is the combination of annular air suction and annular air blowing; (4) performing bundling and oiling; (5) performing drafting: drafting the bundled and oiled fiber in a water bath at the drafting temperature of 90-95 DEG C; (6) performing crimping; and (7) performing loosening and setting to obtain the LDPE / PA6 sea-island fiber. According to the preparation method of the LDPE / PA6 sea-island fiber, the PE wax is added into the sea phase, and the high-temperature drafting process is carried out, so that the crystallinity in the sea-island fiber can be effectively prevented from being improved; and when the prepared sea-island fiber is applied to preparation of microfiber base cloth, the amount is easy to reduce.

A combined filament yarn made by the following way:Cation dyeability polyester(CDP) and polyethylene terephthalate(PET)were spit out by separate die-spinning nozzles on the same board and they were wind to form the yarn. The combined filament yarn composed with 40-70% CDP and PET the rest by weight percentage. Textile made by this kind of yarn is tender, fluff-resistant and shows various styles.